package com.example.lenovo.cameraalbumtest;

import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Build;
import android.provider.MediaStore;
import android.support.annotation.Nullable;
import android.support.v4.content.FileProvider;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;

public class MainActivity extends AppCompatActivity {
  public static  final  int TAKE_PHOTO=1;
  private ImageView picture;
  private Uri imageUri;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Button  takePhoto =(Button)findViewById(R.id.take_photo);
         picture =(ImageView)findViewById(R.id.picture);
         takePhoto.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
                 File outputImage=new File(getExternalCacheDir(),"output_image.jpg");
                 try {
                     if(outputImage.exists()){
                         outputImage.delete();
                     }
                     outputImage.createNewFile();
                 }catch (IOException e){
                     e.printStackTrace();
                 }
                 if(Build.VERSION.SDK_INT>=24)
                     imageUri = FileProvider.getUriForFile(MainActivity.this, "com.example.cameraalbumtest.fileprovider", outputImage);
                 else {imageUri=Uri.fromFile(outputImage);}
             Intent intent=new Intent("android.media.action.IMAGE_CAPTURE");
                 intent.putExtra(MediaStore.EXTRA_OUTPUT,imageUri);
                 startActivityForResult(intent,TAKE_PHOTO);
             }
         });
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
        switch (requestCode){
            case TAKE_PHOTO:
                if (requestCode==RESULT_OK){
                    try{
                        Bitmap bitmap=BitmapFactory.decodeStream(getContentResolver().openInputStream(imageUri));
                        picture.setImageBitmap(bitmap);
                    } catch (FileNotFoundException e) {
                        e.printStackTrace();
                    }
                }
                break;
                default:
                    break;
        }
    }
}
